Article of jewelry



Filed April 1925 I41 I i 5 V INVENTOR GEORGE AARMSTRONG.

Patented Feb. 23, 1926.

UIM'I'ED STATES PATENT OFFICE.

GEORGE A. ARMSTRONG, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO WILLIAM C.

' GREENE COMPANY, A CORPORATION OF RHODE ISLAND.

ARTICLE OF JEWELRY,

Application filed April 29, 1925. Serial No. 26,633.

To all whom it may concern:

Be it known that I, Gnoncn A. ARMSTRONG, a citizen of the United States,residing at Providence, in the county of Providence and State of RhodeIsland, have invented certain new and useful Improvements in Articles ofJewelry, of which the following is a specification. 7

My invention relates to articles of jewelry wherein a stone or the likecarries upon its exposed surface an ornament such as an initial, anemblem or other insignia and is constructed to permit substitution ofornaments upon the stone;

An essential object of my invention is to permit substitution of theornament without removal of the stone from its setting.

A further object is to prevent accidental movement of the ornament uponthe stone.

An additional object is to prevent such movement or rotation of theornament relative to the stone by a means adapted for ,use upon anornament of any contour or size.

The final purpose is to effect the above ends in an inexpensiveembodiment.

My invention consists in the means for producing the results abovespecified substantially as hereinafter claimed.

In the accompanying drawings illustrating the principle of thisinvention and constituting a part of the specification,

Figure l is a front elevation of a finger ring embodying my invention,

Figure 2, a section thereof on line 2-2 of Figure 1,

Figure 3, a rear elevation of the ornament,

Figure 4:, an enlarged fragmentary section of a portion of the stone andornament taken on line 22 of Figure l, and

Figure 5, a similar section of a modified form of my invention,

Like characters of reference indicate like parts throughout the views.

As herein illustrated, a finger ring 7 the article of ewelry forming thebase or support for the ornament carrying stone. This ring includes ahead portion 9 and shank portion 10. The former has a central opening 11wherein is fixed by a heading tool or other usual or convenient means astone or plate 12 having its rear face exposed, and having a hole 13extending therethrough with oppositely disposed lateral or radialcavities la in the front face of the stone opening into the hole.

An ornamental member or plate 16 carries upon its rear face a tubularpost 17 extending as a sliding fit through the hole 13 and having aninternal thread 18. Integral with one end of the post 17 is an oblongplate 19, in this instance lozenge shaped, soldered to or integral withthe back of the member 16 forming radial elevations 20 upon the post 17and member 16 adapted to register in the correspondingly shaped cavities14. The faces of the elevations 20 are preferably tapering, as shown inFigure 4:.

An attaching screw 23 has a shank 24: with a thread 25 engaging thethread 18. A thin transversely arcuate screw head 26 abuts against themember 12 and retains the ornament 16 tightly against the member 12.

In Figure 5 a solid exterior-1y threaded post 28 replaces the tubularpost 1''? and an internally threaded tubular screw 29 is substituted forthe solid screw 23.

It will be noted not only that the ornament 16 is removable withoutloosening or removing the member 12 from its seat, but that theelevations or projections 20 seated in the cavities 14 prevent theornament from accidental circular movement upon the face of the stone.

I cla-im 1. In an article of the type set forth, a base provied with anopening, a stone fixed in the opening, provided with a hole and with acavity in its outer face extending to the hole, an ornamental memberupon the stone, a post upon the ornamental member extending into thehole and provided with a thread, an elevation supported upon theornamental member registering in the cavity, and a screw provided with athread engaging the first mentioned thread.

2. In an article of the type set forth, a base provided with an opening,a stone fast in the opening, provided with a hole and with cavities inits outer face adjacent the hole, an ornamental member upon the stone, apost upon the ornamental member extending into the hole and providedwith a thread, laterally projecting elevations upon the post seated inthe cavities, and a screw provided with a thread engaging the firstmentioned thread.

3. In an article of the type set forth, a head portion with opening, astone in said opening having its rear face exposed, and

having a hole therethroiugh with lateral cavities in its front faceopening into said hole, an ornamental member having a tubular post withinternal threads and an oblong plate forming radial elevationsregistering in correspondingly shaped cavities, an attaching screwengaging said threads the same serving to retain the ornamental membertightly against said stone and preventing accidental displacement andcircular 10 movement of the ornament upon the face of the stone.

In testimony whereof I have afiixed my signature.

GEORGE A. ARMSTRONG.

